Unlike books, journal, or newspaper articles found via library databases, Internet websites are not monitored for quality or accuracy.
Anyone can publish anything on the web. No one ensures that the information on the web is accurate--there are no editors, publishers, scholars, or peers reviewing or checking the information.
Responsibility is thus placed upon the user to evaluate website resources effectively. The C.R.A.A.P Test (below) can help.
Developed by Meriam Library, California State University at Chico, the C.R.A.A.P Test--which stands for Currency, Relevance, Authority, Accuracy, and Purpose--is a list of questions that will help you evaluate information.
Whenever you use information, you need to evaluate it. The CRAAP method will help you do this.
For web pages, you'll also want to pay attention to the domain, found at the end of the URL. Domains can provide some information on the provider, as well as the purpose. For example, organizational domains (.org) usually exist to present their point of view, or to persuade you. Examples of .org domains: NRA, Right to Life. Commercial domains (.com) exist to provide a service or a product. Other domains: .edu, .mil, .net, .gov.